Example Using

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Firebird 5.0 Language Reference

About The Firebird 5.0 Language Reference

Sql Language Structure

Data Types And Subtypes

Common Language Elements

Data Definition (Ddl) Statements

EXTERNAL FUNCTION

DECLARE EXTERNAL FUNCTION

DECLARE EXTERNAL FUNCTION

Clauses and Keywords

Who Can Create an External Function Examples using

ALTER EXTERNAL FUNCTION

Who Can Alter an External Function

DROP EXTERNAL FUNCTION

Who Can Drop an External Function

Data Manipulation (Dml) Statements

Procedural Sql (Psql) Statements

Built-In Scalar Functions

Aggregate Functions

Window (Analytical) Functions

System Packages

Context Variables

Transaction Control

User Authentication

Sql Statements For User Management

Statements For Granting Privileges

Statements For Revoking Privileges

Mapping Of Users To Objects

Database Encryption

Management Statements

Supplementary Information

Exception Codes And Messages

Reserved Words And Keywords

Monitoring Tables

Security Tables

Character Sets And Collations

Document History

FUNCTIONPACKAGE

EXTERNAL FUNCTION
DROP EXTERNAL FUNCTION
Example using

Example using `DROP EXTERNAL FUNCTION`

Deleting the declaration of the addDay function.

DROP EXTERNAL FUNCTION addDay;

See also

[fblangref50-ddl-extfunc-declare]